Abstract: A vacuum-assisted resin transfer molding (VARTM) method is disclosed, the method comprising: providing a vacuum-assisted resin transfer mold assembly comprising a mold having a first mold surface and a second mold surface arranged to enclose a laminate assembly within a space between the first and second mold surfaces when the laminate assembly is placed on the first mold surface; providing a laminate assembly comprising a laminate pre-form, a peel ply, and a resin distribution media pervious to the flow of a resin, the laminate pre-form having first and second surfaces, the first surface of the pre-form positioned to be in contact with the first mold surface, the peel ply positioned such that the second surface of the laminate pre-form is in contact with the peel ply, and the resin distribution media positioned to be contained within the first and second mold surfaces; positioning at least one resin flow control structure to modify the flow of resin within the resin distribution media; providing at least one

Abstract: A fitting for vacuum assisted resin transfer molding and an associated method of use. The fitting includes a base, a sealing washer, a sealing nut, and an inner nut. The fitting is adapted such that it may be reused many times without failing and without causing damage to the fitting, the mold or any resulting hardened resin.

Abstract: A vacuum-assisted resin transfer molding (VARTM) method is disclosed, the method comprising: providing a vacuum-assisted resin transfer mold assembly comprising a mold having a first mold surface and a second mold surface arranged to enclose a laminate assembly within a space between the first and second mold surfaces when the laminate assembly is placed on the first mold surface; providing a laminate assembly comprising a laminate pre-form, a peel ply, and a resin distribution media pervious to the flow of a resin, the laminate pre-form having first and second surfaces, the first surface of the pre-form positioned to be in contact with the first mold surface, the peel ply positioned such that the second surface of the laminate pre-form is in contact with the peel ply, and the resin distribution media positioned to be contained within the first and second mold surfaces; positioning at least one resin flow control structure to modify the flow of resin within the resin distribution media; providing at least one

Abstract: There is disclosed a fitting for vacuum assisted resin transfer molding and an associated method of use. The fitting includes a base, a sealing washer, a sealing nut, and an inner nut. The fitting is adapted such that it may be reused many times without failing and without causing damage to the fitting, the mold or any resulting hardened resin.

Abstract: Described herein are methods for production of sandwich panel end effectors and uses thereof, which may be used in various applications, such as aerospace, transportation, automobiles, aircraft, shipping, and construction. In one embodiment, the subject matter discloses an effective method for creating sandwich panel end effectors which are resistant to deformation or delamination and provide a point for affixing external loads.

Abstract: A data-handling system (20) is arranged to scan through data it holds for instances of sensitive information as identified by reference (35) to a set of sensitive-information identifiers held by the system. Each identifier identifies one or more items of sensitive information (25) and is so formed or protected as to not reveal any such item. Following an instance of sensitive information being found by the scan, it is replaced by a reference to an instance of the corresponding sensitive-information item (25) held in protected storage (21). As a result, in due course the only instances of, sensitive information held by the system (20) will be those in the protected storage (21).

Abstract: A secure transaction method is provided for publicly-accessible transaction terminals. The method uses quantum key distribution (QKD) between a hand-portable QKD device and a complimentary QKD apparatus incorporated the transaction terminal. After the QKD device has been brought up to the transaction terminal, the QKD device and the complimentary QKD apparatus of the terminal are is used to provide the device and terminal with new secret shared random material. The new secret shared random material is then used to establish a secure classical communication channel between the device and transaction terminal for conducting a transaction. An ATM terminal and POS terminal that use quantum key distribution are also disclosed.

Abstract: A thermoplastic multi-layer composite structure is disclosed and consist in a first embodiment of a co-extruded acrylic polypropylene outer skin and high melt strength polypropylene substrate which is attached to a first surface of a polypropylene foam core. An inner polypropylene skin can be provided and is attached to a second surface of the foam core. The foam core can either be constructed from an expanded polypropylene or an extruded polypropylene. Where an expanded polypropylene foam core is provided, the foam core is attached to the outer and inner skin through the use of a polypropylene adhesive. Where the extruded polypropylene foam core is provided, the skins can be attached to the foam core through a welding or bonding process in lieu of adhesives. The polypropylene adhesives can also be utilized for attaching the skins to the extruded foam core. Additionally, the extruded foam core can vary in density to provide a composite foam core.

Abstract: Linear measuring apparatus includes: a guide member extending along a work platform; a drive carriage for movement along the guide member; and a read head, coupled to the drive carriage, for generating a digital number representative of distance corresponding to the movement. Angular measuring apparatus includes: a structural member having an encoder PCB extending in an arc about an axis of rotation through the structural member; a rotor arm for rotating about the axis of rotation, the rotor arm having a contact element that contacts the encoder PCB during the rotation; and a microprocessor electronically coupled with the encoder PCB and configured to determine an angle based upon the rotation.

Abstract: Method of constructing a wall includes constructing a wall defining an upper region, a lower region, and a transition region between the upper and lower regions. The method includes erecting an exterior wall, the exterior wall including at least one layer, and the at least one layer including a wall segment having a height extending from the lower region to the transition region. The exterior wall segment may include a first material. Interior wall includes at least one layer, the at least one layer including a wall element having a height extending within the lower region. The interior wall element may include a second material. Method includes providing a non-post-tensioned reinforcing element in the lower region and providing a post-tensioned reinforcing element in the upper region of the wall.

Abstract: A method and device are disclosed for identifying an item of equipment previously selected by a user. At the time the user selects the item of equipment a reading of a biometric characteristic of the user is taken to provide first biometric data that is then stored for access only by the user-selected item. Subsequently, a user-associated device is used to contact an item of equipment and determine whether the contacted item is the user-selected item by checking whether the contacted item can provide biometric data that matches second biometric data known to correspond to the user. Preferably, the device also checks whether the contacted item of equipment is trustable. User-selectable equipment facilitating identification using biometrics is also disclosed.

Abstract: Data to be output to a removable storage medium is encrypted for sending to an output device by an encryption process based on encryption parameters comprising public data of a trusted party and an encryption key string comprising a policy for allowing the output of the data. The trusted party provides a decryption key to the output device but only after being satisfied that the policy has been met. The decryption key is generated in dependence on the encryption key string and private data of the trusted party. The output device uses the decryption key in decrypting the data to be output. Embodiments are provided that involve multiple policies and trusted parties.

Abstract: A thermoplastic multi-layer composite structure is disclosed and in a first embodiment as a co-extruded acrylic polypropylene outer skin and high melt strength polypropylene substrate which is attracted to a first surface of a polypropylene foam core. An inner polypropylene skin is attached to a second surface of the foamed core, which can either be constructed from an expanded polypropylene or an extruded polypropylene and is attached to the outer and inner skin through the use of an adhesive. Where an extruded polypropylene foam core is provided, the skins can be attached to the foam core by adhesives or through a welding or bonding process in lieu of adhesives. Additionally, the extruded foam core can vary in density to provide a composite foam core. An all acrylic composite multi-layered structure is also provided.

Abstract: A trusted authority delegates authority to a device. This delegation of authority is effected by providing a yet-to-be completed chain of public/private cryptographic key pairs linked in a subversion-resistant manner. The chain terminates with a penultimate key pair formed by public/private data, and a link towards an end key pair to be formed by an encryption/decryption key pair of an Identifier-Based Encryption, IBE, scheme. The private data is securely stored in the device for access only by an authorized key-generation process that forms the link to the end key pair and is arranged to provide the IBE decryption key generated using the private data and encryption key. This key generation/provision is normally only effected if at least one condition, for example specified in the encryption key, is satisfied. Such a condition may be one tested against data provided by the trusted authority and stored in the device.

Abstract: An apparatus for evaluating security within a data processing or transactional environment, comprising a data processor arranged to interrogate the data processing or transactional environment to determine what devices or applications exist with the environment and their operating state, to evaluate this data and to provide an indication of the security of the environment or trust that can be placed in the environment.

Abstract: A thermoplastic multi-layer composite structure is disclosed and consist in a first embodiment of a co-extruded acrylic polypropylene outer skin and high melt strength polypropylene Substrate which is attached to a first surface of a polypropylene foam core. An inner polypropylene skin can be provided and is attached to a second surface of the foam core. The foam core can either be constructed from an expanded polypropylene or an extruded polypropylene. Where an expanded polypropylene foam core is provided, the foam core is attached to the outer and inner skin through the use of a polypropylene adhesive. Where the extruded polypropylene foam core is provided, the skins can be attached to the foam core through a welding or bonding process in lieu of adhesives. The polypropylene adhesives can also be utilized for attaching the skins to the extruded foam core. Additionally, the extruded foam core can vary in density to provide a composite foam core.

Abstract: A thermoplastic multi-layer composite structure is disclosed and consist in a first embodiment of a co-extruded, acrylic polypropylene outer skin and high melt strength polypropylene substrate which is attached to a first surface of a polypropylene foam core. An inner polypropylene skin can be provided and is attached to a second surface of the foam core. The foam core can either be constructed from an expanded polypropylene or an extruded polypropylene. Where an expanded polypropylene foam core is provided, the foam core is attached to the outer and inner skin through the use of a polypropylene adhesive. Where the extruded polypropylene foam core is provided, the skins can be attached to the foam core through a welding or bonding process in lieu of adhesives. The polypropylene adhesives can also be utilized for attaching the skins to the extruded foam core. Additionally, the extruded foam core can vary in density to provide a composite foam core.

Abstract: A rotational molding method is provided consisting in a first method of spraying the inner mold area with an acrylic polyethylene alloy prior to loading the resin into the mold. The mold is then heated, rotated and cooled to form the molded part. The part is provided with a shinier and harder surface layer as compared to previous rotational molding methods. In a second method, in lieu of spraying, the acrylic polyethylene alloy is loaded into the mold with the resin. In the third and fourth methods, a drop box is provided for releasing resins into the mold. Other materials, in addition to acrylic polyethylene, can also be used with the various methods.

Abstract: A thermoplastic multi-layer composite structure is disclosed and consist in a first embodiment of a co-extruded acrylic polypropylene outer skin and high melt strength polypropylene substrate which is attached to a first surface of a polypropylene foam core. An inner polypropylene skin can be provided and is attached to a second surface of the foam core. The foam core can either be constructed from an expanded polypropylene or an extruded polypropylene. Where an expanded polypropylene foam core is provided, the foam core is attached to the outer and inner skin through the use of a polypropylene adhesive. Where the extruded polypropylene foam core is provided, the skins can be attached to the foam core through a welding or bonding process in lieu of adhesives. The polypropylene adhesives can also be utilized for attaching the skins to the extruded foam core. Additionally, the extruded foam core can vary in density to provide a composite foam core.

Abstract: A digital linear measuring device includes a housing, a reel located within a housing and a measuring tape wound on the reel. The measuring tape is extendable through an opening in the housing as the reel is rotated. An incremental measuring means is associated with the reel for generating incremental measuring data and an absolute measuring means cooperates with the measuring tape for generating absolute measurement data as the measuring tape is extended. A processing unit is responsive to both the incremental measurement data and to the absolute measurement data for generating output reflecting linear extension of the measuring tape from the housing, and a display is responsive to the processing unit for displaying information reflecting the linear extension of the measuring tape from the housing.